RedHat: RHSA-2020-4062:01 Important: kernel-rt security and bug fix update
Summary
The kernel-rt packages provide the Real Time Linux Kernel, which enables
fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: use-after-free in sound/core/timer.c (CVE-2019-19807)
* kernel: out of bounds write in function i2c_smbus_xfer_emulated in
drivers/i2c/i2c-core-smbus.c (CVE-2017-18551)
* kernel: race condition in smp_task_timedout() and smp_task_done() in
drivers/scsi/libsas/sas_expander.c leads to use-after-free (CVE-2018-20836)
* kernel: out of bounds write in i2c driver leads to local escalation of
privilege (CVE-2019-9454)
* kernel: use after free due to race condition in the video driver leads to
local privilege escalation (CVE-2019-9458)
Space precludes documenting all of the security fixes in this advisory. See
the descriptions of the remaining security fixes in the related Knowledge
Article:
https://access.redhat.com/articles/5442481
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.9 Release Notes linked from the References section.
Summary
Solution
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
References
https://access.redhat.com/security/cve/CVE-2017-18551 https://access.redhat.com/security/cve/CVE-2018-20836 https://access.redhat.com/security/cve/CVE-2019-9454 https://access.redhat.com/security/cve/CVE-2019-9458 https://access.redhat.com/security/cve/CVE-2019-15217 https://access.redhat.com/security/cve/CVE-2019-15807 https://access.redhat.com/security/cve/CVE-2019-15917 https://access.redhat.com/security/cve/CVE-2019-16231 https://access.redhat.com/security/cve/CVE-2019-16233 https://access.redhat.com/security/cve/CVE-2019-16994 https://access.redhat.com/security/cve/CVE-2019-17053 https://access.redhat.com/security/cve/CVE-2019-17055 https://access.redhat.com/security/cve/CVE-2019-18808 https://access.redhat.com/security/cve/CVE-2019-19046 https://access.redhat.com/security/cve/CVE-2019-19055 https://access.redhat.com/security/cve/CVE-2019-19058 https://access.redhat.com/security/cve/CVE-2019-19059 https://access.redhat.com/security/cve/CVE-2019-19062 https://access.redhat.com/security/cve/CVE-2019-19063 https://access.redhat.com/security/cve/CVE-2019-19332 https://access.redhat.com/security/cve/CVE-2019-19447 https://access.redhat.com/security/cve/CVE-2019-19523 https://access.redhat.com/security/cve/CVE-2019-19524 https://access.redhat.com/security/cve/CVE-2019-19530 https://access.redhat.com/security/cve/CVE-2019-19534 https://access.redhat.com/security/cve/CVE-2019-19537 https://access.redhat.com/security/cve/CVE-2019-19767 https://access.redhat.com/security/cve/CVE-2019-19807 https://access.redhat.com/security/cve/CVE-2019-20054 https://access.redhat.com/security/cve/CVE-2019-20095 https://access.redhat.com/security/cve/CVE-2019-20636 https://access.redhat.com/security/cve/CVE-2020-1749 https://access.redhat.com/security/cve/CVE-2020-2732 https://access.redhat.com/security/cve/CVE-2020-8647 https://access.redhat.com/security/cve/CVE-2020-8649 https://access.redhat.com/security/cve/CVE-2020-9383 https://access.redhat.com/security/cve/CVE-2020-10690 https://access.redhat.com/security/cve/CVE-2020-10732 https://access.redhat.com/security/cve/CVE-2020-10742 https://access.redhat.com/security/cve/CVE-2020-10751 https://access.redhat.com/security/cve/CVE-2020-10942 https://access.redhat.com/security/cve/CVE-2020-11565 https://access.redhat.com/security/cve/CVE-2020-12770 https://access.redhat.com/security/cve/CVE-2020-12826 https://access.redhat.com/security/cve/CVE-2020-14305 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.9_release_notes/index https://access.redhat.com/articles/5442481
Package List
Red Hat Enterprise Linux for Real Time for NFV (v. 7):
Source:
kernel-rt-3.10.0-1160.rt56.1131.el7.src.rpm
noarch:
kernel-rt-doc-3.10.0-1160.rt56.1131.el7.noarch.rpm
x86_64:
kernel-rt-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-debug-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-debug-devel-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-debug-kvm-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-debug-kvm-debuginfo-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-debuginfo-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-devel-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-kvm-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-kvm-debuginfo-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-trace-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-trace-devel-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-trace-kvm-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-trace-kvm-debuginfo-3.10.0-1160.rt56.1131.el7.x86_64.rpm
Red Hat Enterprise Linux for Real Time (v. 7):
Source:
kernel-rt-3.10.0-1160.rt56.1131.el7.src.rpm
noarch:
kernel-rt-doc-3.10.0-1160.rt56.1131.el7.noarch.rpm
x86_64:
kernel-rt-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-debug-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-debug-devel-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-debuginfo-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-devel-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-trace-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-1160.rt56.1131.el7.x86_64.rpm
kernel-rt-trace-devel-3.10.0-1160.rt56.1131.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux for Real Time (v. 7) - noarch, x86_64
Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, x86_64
Bugs Fixed
1427551 - mm/swap: Convert to percpu locked
1707796 - CVE-2018-20836 kernel: race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c leads to use-after-free
1745528 - CVE-2019-15217 kernel: null pointer dereference in drivers/media/usb/zr364xx/zr364xx.c driver
1747216 - CVE-2019-15807 kernel: Memory leak in drivers/scsi/libsas/sas_expander.c
1757368 - CVE-2017-18551 kernel: out of bounds write in function i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c
1758242 - CVE-2019-17053 kernel: unprivileged users able to create RAW sockets in AF_IEEE802154 network protocol
1758248 - CVE-2019-17055 kernel: unprivileged users able to create RAW sockets in AF_ISDN network protocol
1759681 - CVE-2019-16994 kernel: Memory leak in sit_init_net() in net/ipv6/sit.c
1760100 - CVE-2019-15917 kernel: use-after-free in drivers/bluetooth/hci_ldisc.c
1760310 - CVE-2019-16231 kernel: null-pointer dereference in drivers/net/fjes/fjes_main.c
1760420 - CVE-2019-16233 kernel: null pointer dereference in drivers/scsi/qla2xxx/qla_os.c
1774988 - CVE-2019-19046 kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c
1775015 - CVE-2019-19063 kernel: Two memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c allow for a DoS
1775021 - CVE-2019-19062 kernel: memory leak in the crypto_report() function in crypto/crypto_user_base.c allows for DoS
1775042 - CVE-2019-19059 kernel: Multiple memory leaks in the iwl_pcie_ctxt_info_gen3_init() function in drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c allows for a DoS
1775047 - CVE-2019-19058 kernel: A memory leak in the alloc_sgtable() function in drivers/net/wireless/intel/iwlwifi/fw/dbg.c allows for a DoS
1775074 - CVE-2019-19055 kernel: memory leak in the nl80211_get_ftm_responder_stats() function in net/wireless/nl80211.c allows DoS
1777418 - CVE-2019-18808 kernel: memory leak in ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c
1779594 - CVE-2019-19332 Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid
1781679 - CVE-2019-19447 kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c
1783434 - CVE-2019-19523 kernel: use-after-free caused by a malicious USB device in the drivers/usb/misc/adutux.c driver
1783459 - CVE-2019-19524 kernel: a malicious USB device in the drivers/input/ff-memless.c leads to use-after-free
1783518 - CVE-2019-19530 kernel: use-after-free caused by a malicious USB device in the drivers/usb/class/cdc-acm.c driver
1783540 - CVE-2019-19534 kernel: information leak bug caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_core.c driver
1783561 - CVE-2019-19537 kernel: race condition caused by a malicious USB device in the USB character device driver layer
1786078 - CVE-2019-19807 kernel: use-after-free in sound/core/timer.c
1786160 - CVE-2019-19767 kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry related to fs/ext4/inode.c and fs/ext4/super.c
1788009 - Request nx_huge_pages=N as default value to avoid kvm-rt guest large latency spike
1790063 - CVE-2019-20054 kernel: Null pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c
1791954 - CVE-2019-20095 kernel: memory leak in mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c
1802555 - CVE-2020-8649 kernel: invalid read location in vgacon_invert_region function in drivers/video/console/vgacon.c
1802563 - CVE-2020-8647 kernel: out-of-bounds read in in vc_do_resize function in drivers/tty/vt/vt.c
1805135 - CVE-2020-2732 Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources
1809833 - CVE-2020-1749 kernel: some ipv6 protocols not encrypted over ipsec tunnel
1810685 - CVE-2020-9383 kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c
1817141 - CVE-2020-10690 kernel: use-after-free in cdev_put() when a PTP device is removed while it's chardev is open
1817718 - CVE-2020-10942 kernel: vhost-net: stack overflow in get_raw_socket while checking sk_family field
1818818 - CVE-2019-9454 kernel: out of bounds write in i2c driver leads to local escalation of privilege
1819377 - CVE-2019-9458 kernel: use after free due to race condition in the video driver leads to local privilege escalation
1822077 - CVE-2020-12826 kernel: possible to send arbitrary signals to a privileged (suidroot) parent process
1824059 - CVE-2019-20636 kernel: out-of-bounds write via crafted keycode table
1824918 - CVE-2020-11565 kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c
1831399 - CVE-2020-10732 kernel: uninitialized kernel data leak in userspace coredumps
1834845 - CVE-2020-12770 kernel: sg_write function lacks an sg_remove_request call in a certain failure case
1835127 - CVE-2020-10742 kernel: NFS client crash due to index buffer overflow during Direct IO write causing kernel panic
1839634 - CVE-2020-10751 kernel: SELinux netlink permission check bypass
1850716 - CVE-2020-14305 kernel: memory corruption in Voice over IP nf_conntrack_h323 module
